I love coffee; it's one of my favorite vices. The sight and smell of a cup of freshly brewed, rich, dark brown liquid java, first thing in the morning, is a sight to behold. Other than the caffeine, coffee seems like a pretty benign beverage. In fact, I've been hearing a lot of good things about it lately.

A large observational study recently found that people who drink coffee appear to have a reduced risk of developing type 2 diabetes. An article in Diabetes Self-Management relates this reduced risk of developing type 2 diabetes to the possibility of antioxidants in coffee.

In visiting with some patients, they say coffee causes their blood glucose to rise. That doesn't make any sense to me at first, because coffee without cream/sugar doesn't have any carbohydrates or calories.

"Caffeine impairs insulin action but not glucose levels in young, healthy adults, but people with type 2 diabetes may experience a small rise particularly after meals," says Dr. Maria Collazo-Clavell, a Mayo Clinic endocrinologist. The amount of caffeine that causes this effect is about 250 milligrams — or the equivalent of 2 to 2 1/2 cups (473 to 591 milliliters) of plain, brewed coffee — a day.

Twenty years ago, a serving of coffee was 1 cup. Today, it's often 2 cups. Maybe we don't need to cut coffee completely out of our daily routine, just pay a little more attention to portions.

Doesn't it seem like about the only thing that doesn't affect your blood glucose is water?

Does anyone remember Mrs. Olsen from the 70's coffee commercials? I wonder if she had type 2 diabetes.

142 Comments Posted

I had low blood sugar from a teenager and until I had my second baby, but had gestational diabetes, but then went back to low blood sugar. Then with my third baby I had gestational diabetes again, but after I had him, I had normal blood sugars even until this day, but I have always had a problem with drinking caffeine. I would find that my sugar would plummet if I drank caffeinated pop on an empty stomach. This still happens today. I get the shakes and need to eat everything in site until I stop shaking and get my sugar back to normal. I try not to drink much caffeine and most of all I try to only drink caffeinated drinks with food. I don't drink much coffee, mostly dark colas. I try to drink only sodas without caffeine. I am 62 yrs old and beat diabetes. I feel that the Dr. that put me on a strict sugar-free, low carb diet for several yrs turned me around. I have a family with a lot of diabetes. I feel lucky, but I wanted someone to know about the problem I have with caffeine.

I agree that caffeine can cause blood sugar to rise. It is like everything else people's body's are different so where it could cause blood sugar to rise in one person may not in another.

Jann

August 21, 2014 7:55 a.m.

If I drink 6 ounces of black decaf, without any food after taking morning medications, I get a 20 unit rise in glucose one hour later. If I eat anything, I get at least a 60 unit (mg/dL) rise stable for the next three hours. Caffeine remains in the system for three hours after consuming, explaining the plateau. Even when I halve the amount of decaf grounds to make the pot of coffee. My attempts to protect my prostrate by drinking six cups of decaf every day raised my A1C levels from 6.0 to 6.4 over two quarters. I hope my new numbers will put me under 6.0, provided I go caffeine free. Doctors need to stress the need for new diabetics to go caffeine free for one quarter, to accurately gauge true A1C levels in patients.

Steven Sales

March 5, 2014 11:03 a.m.

if coffee has no caffeine is it bad for your blood sugar?

linda

February 15, 2014 3:37 p.m.

I drink coffe and a lot of it!! I can't seem to keep my blood glucose up. It's always around 100 or lower. Was just diagnosed in November with type 2 diabetes but when reading about it I don't know what is right and what is wrong. Very confusing!

Phyllis

November 12, 2013 12:57 p.m.

When I have two cups of coffee in the morning after taking my Diabetes pills and eating a healthy balanced breakfast I have quite a number of very low readings-so what is with this-my numbers go way down and not up---

Linda

September 18, 2013 2:22 a.m.

With a phase-inversion sleep disorder, using a walking frame and taking cabs to the doctor, I found morning trips to have my blood drawn for a fasting blood sugar test to be an ordeal.
One morning I decided &quot;I just can't bear this. We're going to have to set a new baseline: fasting except for a mug of coffee.&quot;
My hitherto perfectly controlled fasting blood came back 16. Sixteen!! Almost triple my usual good results.

Cass

September 17, 2013 11:09 p.m.

Yes coffee always raises my blood sugar by atleast a hundred points.

Misty

May 28, 2013 5:03 p.m.

EIGHT 2-liter bottles of diet coke a day for 35 plus years. (Science doesn't want to wait to test me, they want to kill and dissect me now to see what 35 years of four packs of smokes daily plus eight 2-liter bottles a day of diet coke does to a human body).
A1C registers in the 400s. But I'm a studmuffin, not obese, and I am not a type I diabetic. I refused the insulin when diagnosed type ii diabetic, and, low-n-behold, blood sugar levels left the 458 readings that the doctors got ...and dropped to healthy as a horse (in comparison). I guarantee you that the cola's chemicals change the blood sugar levels (dramatically in my case --weeks in high 200's for blood glucose, versus consistantly low 130's when modifying certain variables like decaf, limited quantities on a day, etc). But keep in mind that caffeine is not the only criminal in your coffee or cola...

Kelly

May 10, 2013 10:37 a.m.

I had eaten a small sandwich at work around 3, and then had a strong cup of tea.
At 5:30 I was just outside watering the grass and though I didn't feel ravenous, I felt that &quot;shaky need&quot; to eat. So I went to make a sandwich, but within two minutes my blood sugar crashed and I was shaky and sweating.
My last test for diabetes (less than a yr ago) was normal.
I believe it was a combination of caffeine and not eating enough that afternoon. I usually eat every few hours, the equivalent of a small sandwhich, whole grains and all that. I usually hit my mark (or more) of 1300 -1400 calories a day, which is what my body officially requires. I'm 39, female, and though I could lose five pounds around the middle, I'm pretty healthy.
I have been avoiding caffeine for the last year because of the shakes it gives me, but I really wanted one that day.

Jo

April 16, 2013 2:32 p.m.

I checked out the Natural Medicines Comprehensive Database on green coffee beans and read that several clinical trials showed a very modest weight reduction. The site noted that the published studies are preliminary, short-term, and of poor quality. Green Coffee is a source of caffeine similiar to brewed coffee and can cause the same caffeine side effects.

Peggy and Nancy

April 15, 2013 9:58 a.m.

A cup of coffee will rise in my bg only 3-4 points so I always test before I have any. It took me several years to figure this out
Pat

Anonymous

April 12, 2013 1:26 p.m.

Please share any comments you can offer on
Green Coffee Bean Extract as a supplement to
weight loss for a person with Type II diabetes. Would the use of this product present problems with caffeine overload?

Carol

April 11, 2013 9:01 a.m.

I am not an everyday coffee drinker. That being said, I like a good cup of coffee every once in awhile. The only problem is when I drink coffee about an hour later my blood sugar plummets and fast. I end up with the shakes and sometimes weak like I'm going to pass out. I was glad to see this article because I thought it was only me that this happens to!

Tena

March 22, 2013 2:15 p.m.

I asm a Type 2 Diabetic, 50 yrs old. I recently noticed that my sugar levels were significantly lower when I cut out caffeine. I'm a believer.

teresa

January 23, 2013 9:35 a.m.

What I normally eat for breakfast, which includes a regular cup of homebrewed coffee, has been resulting in BG level of 140. Today I drank a medium Caribou instead. BG - 190!! Last time I do that! Yn

robin

January 15, 2013 2:39 p.m.

i have recently been put on an insulin pump, and to my surprise-you would not beleive all of the items, including DECAFINATED coffee that makes my sugar levels go up. Even foods with 0 carbs actually make my sugar go up. I check my BG and eat something that is carb free, such as a piece of chicken and my sugar rises. Dr. says I am insulin and carb sensitive, so now I always put in 1 or 2 carbs even for foods that are carb free so the insulin will cover them.

moe

January 15, 2013 2:05 p.m.

Maybe I'm lucky but I can drink almost any amount of coffee and my blood sugar stays normal.

Harry

October 27, 2012 1:52 a.m.

Caffeine blocks cAMP production leading to glucose levels to increase in the blood stream.

Leah

August 28, 2012 3:18 p.m.

The jury is still out on the benefits of cinnamon for diabetes; some studies say it helps and others say it doesn't.

Nancy and Peggy

August 25, 2012 11:00 a.m.

I have Hypoglycemia and really crave caffeine...now I think I've found out why! Going to have to cut down on my coffee intake. I habe heard that cinnamon is good to add to foods and beverages to help control glucose levels...any comments? Finally, to the person who asked about Bariatric surgery...it is a surgery usually involving stomach banding,sleeve gastrectomym, biliopancreatic diversion with duodenal switch or gastric bypass surgery, used to promote weight loss in severe cases. Long-term studies show the procedures cause significant long-term loss of weight, recovery from diabetes, improvement in cardiovascular risk factors, and a reduction in mortality of 23% from 40%.

justin

August 20, 2012 3:00 p.m.

I'm not entirely sure if this is the case for me, but I am a huge coffee fan and as of late I've realized even if I drink it with food, within an hour I have the &quot;hungry stomach ache&quot; with lightheaded-ness. Would assume it has something to do with the insulin levels?

Kaitlyn

June 20, 2012 6:54 a.m.

I'd been avoiding caffeine for several months due to high blood pressure as well as type 2 diabetes. BP was well under control so started drinking sugar-free beverages with caffeine. Within 2 weeks AM glucose levels rose from around 100 to 120 w/o any other changes in medications, diet or exercise. Became suspicious, searched, and found this site. Will avoid caffeine again. Dr Pod.

Ken

June 13, 2012 11:36 a.m.

I do not want to contravene posting rules here, but I see other folks mention brand names, so I just want to offer up a suggestion of something new to try, if you love coffee, try a brand called Boresha Bskinny coffee - not only is it delicious arabica coffee but it helps maintain normal Basal Metabolic Rate, which is important for everyone but particularly for diabetics. They also have a sweetener called Bsweet, the only 100% natural, Low Glycemic, Non-Cephalic, Fruit Sweetener, that I have ever heard of, that is backed by clinical trials in children ages 6 to 18 and adults (including diabetics). I have found, through personal regular consumption for the last year, that my body feels better balanced without ups and downs and energy crashes, and I have consistent greater energy, as the caffeine is in a buffered slow release form, and the coffee itself is infr-red roasted so no acidity or bitterness.

Corinne

May 24, 2012 10:06 a.m.

After reading the posts, and after doing a face plant into rocks while walking my dog two days ago and turning my nose into hamburger, I decided I needed to find the root cause of my &quot;vertigo&quot;. I have the equivalent of 3.5 cups of coffee every morning with coffee mate AND chocolate syrup. Then I feel really different. SO NO MORE COFFEE. Going to watch the carbs too! I'm going to get a meter to check my blood sugar and have a Dr. appointment for next Tuesday. I will keep you posted.

joanne

May 4, 2012 4:27 p.m.

After seeing my Endo the other day he said that drinking green tea that has caffeine in it is the cause of my higher blood sugars. I have switched over to decaf tea and have seen a difference already. I drink green tea all day long. Who knew? I sure didn't. I use it w/0 sugar or sweetner. Something to think about.

Bea

April 13, 2012 3:02 p.m.

Dr oz has stated on his tv show that he cannot understand why people do not have barractic surgury to eliminate diabetes. I have tried to research this and get no where. Does anyone have an answer to this question? Probably insurance issues and age factors. Don't know about the health issues, but would like to know. Will be eliminating coffee intake to a couple cups, usually have 5-6 cups of half and half a day. Diabetes is hard to control, and if you don't excerise the drugs we are given don't do much to keep b/sugars low.

Roger

April 13, 2012 1:51 p.m.

Diabetes and Caffeine---perhaps coffee is not the only thing to look at on this subject. I am a D2 and have been on the low edge of that for years. Since I reduced my coffee intake from 8 ounces/day to 4 ounces/day AND cut out a much liked diet Pepsi, my AM fasting blood glucose level average has dropped from 95 to 82 and my evening PM BG has dropped from 123 to 105. This is after only two weeks and of course I am only one person.

Leonard

April 12, 2012 8:57 a.m.

I have noticed recently that even black tea (which in Chinese herbal medicine is used to reduce blood sugar) causes my blood sugar levels to rise, even if I have not eaten anything. Not a huge rise...maybe 30 points. I use only Equal in my tea. When I don't drink it, then I don't get that slight rise.

Michelle

March 25, 2012 1:07 p.m.

The first thing I do each morning is take my blood pressure and thyroid medication then sit down with a freshly brewed cup of gourmet coffee. I drink it black because I really love coffee's 'taste'. BY this time I have become better with cutting and refining my diet and the kinds of carbs I was eating each day [in my on-going war to lose weight]However,I noticed the slightly light-headed feeling I experienced later in the morning just has NOT gone away! [and what's with the hike in my glucose readings!-from 109 to 129?]
It was obvious~ the only thing I had was the coffee!
I called a friend who takes insulin for her diabetes, but these people aren't always as careful about their carbs as those of us who don't have the injections to rely on. So, she was no help.
Finally, I GOOGLED this question...and here I am...reading a blog with most everyone saying they have this strange reaction to coffee.
So, that's it folks! Caffeine is definitely NOT our friend in the morning! [BUMMER!]

GENEVA

March 24, 2012 3:10 p.m.

My husband has type 2 is truvia ok to use with coffee,and cakes,cookies for him. thanks

Carolyn

March 1, 2012 10:38 a.m.

I started drinking coffee when I turned 26 and instantly fell in love with the rich aroma and wonderful flavor. I drank it black. When I turned 30 I was diagnosed with diabetes and went immediately to insulin injections. At 45, I began noticing my B.S. would spike (300+) after I drank just one cup of coffee. I really took notice to make sure it 'was' the coffee and quit drinking it immediately. I started with regular coffee but also tried decaf. I had the same results with both. Just the other day, thought I would give it a go, you know....just in case. My blood sugar before the coffee was 119 and after was at 362. Nope! I won't be going there any more. And, I still don't understand why... I can drink tea, regular or decaf, although I prefer decaf, no nausea as with the regular. Basically no coffee for 11 years now and boy do I miss it!

Debbie

February 10, 2012 10:53 a.m.

I had already decided to get off caffeine so I switched to decaf. Today I woke up with a sugar of 152. I had a cup of decaf with half/half and within 15 minutes my sugar was 194 and my head was spinning. It took a walk to bring it back down. So now I have to give up decaf. Why is this issue so hard to sort out? Isn't this what medical research is for?

Joedg319

February 8, 2012 1:30 p.m.

I love coffee too. I never considered it an enemy to my diabetes though until I read Nancy's Blog. I can't say yes or no if my blood sugar is better or worse after a cup. I can only hope not until there is a way to single out the effect of coffee only. My only guess would be its effect on our nervous system might ave cross-over implications.M

Sixwomen

January 30, 2012 11:55 a.m.

I drink 4 cups in a.m. and nothing else - it raises 30/40 it but I use cream...and it subsides before breakfast.
Dang nab it... I am sick of the diabetic rollacoaster. Metformin upsets tummy - Actos made me nervy - Januvia quit working - now 20mg Lantus at bed time and (know better but...) had a bowl of cereal this am and 1.5 hrs after hit 310. Tuna for lunch and sugar testing 210. Lantus gave me a nice big menopot at 48!
Anyone have advise to control without insulin as it makes me hungry and fat!

Amos

January 29, 2012 9:29 a.m.

Does this also apply to decaf coffee

jOHN

January 26, 2012 12:02 a.m.

Wow. Sorry for those of you with the spike in blood sugar. I almost always have hypoglycemia with coffee. I do drink it black (like mom and dad drank it). I become very hungry, shaky, agitated, and if I don't eat with my coffee I do get nauseated and confused. The symptoms don't last too long because I eat or snack with coffee. Food and coffee has always gone together for me.

Cynthia

January 25, 2012 3:44 p.m.

I drink lots of coffee and it will make my sugar rise. That was befor I found out that powder coffee creamer is highly concentrated sugar.I found this by watching Myth Busters.They were looking for something that could a bigger explosion than saw dust, they used coffee creamer.It was the only experiment to get out of control on that show. Although it has not mention of sugar on the package because they call it another name when processed in that fashion,however it will be labeled as HIGhLY FLAMABLE

Elmer

January 22, 2012 12:02 a.m.

Coffee, tea, and chocolate all make my blood sugars spike. I have recently become a type 2 diabetic and tried to control the Pre-diabetic stage with diet for several years and a meter to help me with that control.

Marjorie

January 5, 2012 3:11 a.m.

Also, it is to be noted that I'm slow eater and a slow drinker. I don't usually finish a can of soda or a glass of coffee within the same hour that I start it so I haven't had the gigantic spikes in glucose that some people are reporting here. I am quite confident, however, that If I did down one in 20 minutes I'd probably be reeling at somewhere over 200, considering how I react to just a few sips.

H

January 5, 2012 2:56 a.m.

unexplainably high* is what I meant to type there, sorry.

H

January 5, 2012 2:55 a.m.

I was diagnosed with gestational diabetes about 2 weeks ago and about 3 weeks ago I started having issues with tiredness and grumpiness if I'd had a high carb meal. After watching my blood sugar every day I was having trouble figuring out how my blood glucose was sometimes explainably high for what was, on some days, up to hours at a time. Even when I cut my carb intake per meal in half, removed carbs completely or even just didn't eat my blood sugar would remain between 114 and 130 and I would feel completely wiped out until it finally went back down. The only thing that I consumed in those desperate cut back eating spurts were 0 calorie drinks. When those drinks contained any level of caffeine my blood glucose levels remained high and refused to reduce. Even 2 or 3 sips of coffee in the morning can ruin my entire day if I don't reign it in quickly. Now, I can drink a glass of chocolate milk and I'm fine but if I'm drinking anything with high concentrations of caffeine, like diet soda or coffee, then I might as well give up on eating for the whole day. I've noticed that the more I reduce my caffeine intake at each meal the less time my blood sugar remains high. I'm at the point now where I'm just going to ditch the caffeine all together until after this pregnancy when my body balances back out again.

H

December 25, 2011 10:52 a.m.

My husband has diabeties, he has been having trouble of a morning with his blood sugar level rising and then falling really fast, we have been really confused about what was going on with his blood sugar level, after reading your post on here, it seems coffee may be the culpret to some of his problems, he has just started drinking coffee with me in the morning and looking back it seems his worst problems started at that time.

Carolyn

November 22, 2011 12:25 p.m.

I feel that caffeine is not what diabetics or any who wants to avoid diabetes should be imbibing. Caffeine lowers your blood sugar. So then you become hungry especially if one is sedentary like most of us. The restaurateurs at one time had the bottomless cup which they found increased the sales of there product. Over eating is a big part of diabetes.

Joseph

November 15, 2011 8:42 a.m.

Coffee increases blood sugar level from 120 when I wake up to over 200 in one hour. Tried decafe with the same result. in the evenings, I drink diet coke (with caffeine) and see no increase. There must be something else in coffee other than the caffeine that spikes the blood count. Now using green tea but it also increase to around 150.

jon

November 2, 2011 10:53 a.m.

Caffeine is known to suppress hunger, which it absolutely does for me...so it may cause your blood sugar level to drop due to not eating. Also, as I feel the caffeine effects fading away hunger hits me like a ton of bricks and can result in binge-type-eating because I am so hungry...or at least I think I'm hungry...it's probably because my sugar level has hit the floor! I find coffee is okay for me in the evening but hits me much harder in the morning. Bummer.

Carrie

October 23, 2011 7:42 a.m.

I believe when you suffer from depression and are (type 2) diabetic,this can be a dangerous combination. The depression can interfere with your willingness to care for your diabetic condition.

Vincent

October 21, 2011 8:52 p.m.

I am not diagnosed with any form of diabetes, but after ingesting caffeine, I experience symptoms that resemble hypoglycemia, with hot/cold flashes, dizziness, pinpointing of pupils, and slight aphasia and confusion. I have mentioned these symps. to drs. and they have never given any particular cause beyond a rise in blood pressure (I am treated for hypertension). However, I have tested my bp during these odd spells and gotten low-normal readings, not high. Any ideas?

Mary

October 1, 2011 12:02 a.m.

I am a diabetic and on 2 insulins
30 Mil of Novalog 3 times a day and 50 Mil of Levimere twice a day. I also have the dextron monitor. Coffee spikes my sugar over 200 every morning. I can't take a day without the coffee caffiene in the morning :-(

Mary

September 30, 2011 12:54 p.m.

I was diagnosed about 5 years ago. I was a major coffee drinker, some 4-5 cups a day. I cut back to one a day on weekdays and 2 or 3 on Saturdays. I kept wondering why, on Saturdays, my blood sugar was so much higher when I tested 2 hours after breakfast, when i was eating the same thing at the same time. I figured out that the only thing I was doing differently was drinking more coffee. So, I switched to decaffeinated coffee, and presto! the 2 hour test was at the weekday levels. It doesn't seem to matter if I drink 2 cups of tea or Yerba Mate in the mornings, but the caffeinated coffee really does make my sugar spike.

Tessie

September 30, 2011 9:13 a.m.

I love coffee too! I was just diagnosed with pre-diabetes and quite frankly, I am very confused. My husband says my personality changes on occasion not for the better! I absolutely crave chocolate, pastries, ice cream and pie. I have NEVER had this craving before. Is this personality change related to pre-diabetes or am I just becoming a b----?
I really don't want to give up my coffee as well as the pastries and chocolate.

Linda

September 10, 2011 12:37 a.m.

I am 58 and was diagnosed with diabetes at age 46. I have been wearing an insulin pump for the past 5 years. I can get up in the morning and have my blood glucose at 90 and drink 2 cups of black coffee (no food at all) and in 1 - 2 hours my glucose is at 150-160. This has stumped me as I can't figure how my blood sugar rises with no carb intake. This has been consistent every morning to the point that I adjust my insulin intake. I've wondered if others have experienced the same thing. My endocrinologist thinks it related to the adrenaline response.

Catherine

September 8, 2011 1:59 a.m.

I use coffee for low blood sugar incidents. I am type 1 since April and have had to completely forgo my beloved once a day cup even when I add soy milk instead of milk which is also spiker for me.

kim

August 19, 2011 6:35 p.m.

My husband and I have been diagnosed Type 2, his A1C was 7 and mine 7.5. I have switched to caffine coffee, he has switched to sugar free RED BULL 20.oz can 77mg's per 8oz (2.5 serv x77mg= 192.5) per can and he drinks at least 4 cans a day..Geez this worries me. Is this not worse than a cup or two of coffee a day? Help..

Arlene

August 10, 2011 9:57 a.m.

I also enjoy coffee - everyday. I am a type 1 diabetic and have been for thirty years. The only rise in bloodsugar from drinking a cup of coffee would be if I add any special creamer or even some splenda to the cup. When drinking coffee plain I do not have any change in blood glucose. I drink two cups a day and have been following this routine for about three years now and nothing has happened but a nice quick pick me up in the morning which I always need. Coffee is fine atleast from a type 1's perspective.

Amy

August 8, 2011 7:25 p.m.

I LOVE COFFEE WITH HONEY AND ALMOND MILK. IS IT OK TO DRINK IF SOMEONE IS DIABETIC.

kate

July 18, 2011 12:25 a.m.

Call me crazy (or lucky) but caffiene seems to LOWER my blood sugar. I was recently diagnosed with gestational diabetes (pregnancy diabetes) so I've only been testing my BS for a few months. I'm not a coffee drinker, but I drink Diet Coke sometimes with lunch or dinner and after those meals I test way lower than when I eat an identical meal and drink water. I wonder if the caffiene in coffee is somehow different than that added to soda.

Jennifer

July 15, 2011 6:44 p.m.

I am an active 62 year old female. Walk and hour three times a week and swim twice a week. I have recently experienced higher blood sugar in the mornings and blurry vision in one eye only. I reduced my calories drastically and I lost weight, eating only one slice of bread during the day and no other starches. My problems kept getting worse. Higher sugar levels in the AM and increased blurriness. Scared as could be I went to see both an opthalmologist and an endocrinologist. My sugar, as it turns out is normal but I am pre-diabetic. My endocrinologist suggested that I am not eating enough protein and starving myself. Hence the severe hunger pains. Coffee and toast once a day is spiking my sugar. Adding proteins and snacks is helping.
Thanks to the doctor who believed me when I told her what I was eating instead of looking at me sideways and giving me that &quot;I know you are lying look.&quot; I am seeing again out of the left eye.

A.

July 7, 2011 11:17 a.m.

I'm a Type I diabetic and am on an insulin pump. I also wear a DEXCOM monitor. I too love the smell and taste of coffee. I usually have 2 to 2.5 cups a day and yes my sugars do spite. I've learn to treat myself before consuming. However, I've been told there are no studies that track/measure the impact of caffine on glucose spites for Type I or II diabetics? Is this true, and if so, why not?

Tim

June 30, 2011 4:35 p.m.

I'm type II diabetic. Coffee most definately raises my blood sugar. I now drink a mug of coffee late morning if I need one. I've also switched to Yerba Mate tea which has caffine but is calming. Also please stay away from agave. Very refined and very bad for diabetics. I use stevia or xylotol.

Chris

June 6, 2011 9:52 a.m.

Lover watermelon, is back for me, just diagnozed with tpye 2

Judith

May 26, 2011 9:53 a.m.

Starting with a normal range fasting blood sugar (e.g less than 120), in the morning when I drink a shot of espresso with Splenda, with no other carbs or food consumed, my sugar skyrockets up to the 250s within a couple of hours. (I'm type 1 on a pump.)
Interesting reading the comments below - makes me wonder whether a formal study been done on this for Type 1, but based on feedback below, it sounds like there's definitely an impact. Would be helpful to know how to bolus/wave for this.

Nancy

May 21, 2011 3:25 p.m.

check out this research group

help find a cure

April 11, 2011 1:14 p.m.

I love coffee too. So much so that at times it is all I have for breakfast because it raises my BS so high. I know it isn't the right thing to do with my type 1 but I am a creature of living life to love life. It may shorten it, but I will enjoy while I can.

Michelle

April 10, 2011 2:05 a.m.

Diabetic type II. I take Metformine 2000mg daily and recently started to take long lasting Insulin. I am 60 years old.
I drink coffee from my childhood. Just love it. If my sugar gets low coffee is the best to rise it. It works right away. I drink coffee with milk if I do have one or with cream.
I will not say that it is coffee rise my sugar level which I do have after food. It is the same with coffee or without, just high. I always used to exercise till I got heart attack, I use healthy life style, but my weight is 250Lbs and no one pounds was lost after I got additional 100Lbs about 10 years ago. I am happy that I do not get more.

irina

April 8, 2011 8:27 a.m.

a 68 year old male with type 2 says yes, dammnit

Gary

March 11, 2011 8:29 a.m.

Just a reminder.... WE ARE ALL DIFFERENT!!!
I had hypoglycemia at age 28 (w/family history of diabetes). During a physical at age 50 I was told I was diabetic. The level was over 300. Second opinion; the same. I was told by a dietitian that we are all different, I would need to try different things to see how they effected ME. I have found this to be true during the 17 years I've been playing with it. I am in good physical condition, no drugs, Diet and Exercise.. Talk with your Dr. and get a good dietitian and talk with them. Good luck...

Fred

March 6, 2011 9:55 a.m.

I am an avid coffee drinker. i also have type 1 diabetes with traits of type 2. I was shocked to read this article and it makes more since now once i think about the rise in my glucose levels by lunch time..

Beth

February 25, 2011 1:27 p.m.

I have had my blood sugar go from 85 (fasting) to over 130 within 10 minutes of my morning coffee. I assumed it was from the Agave syrup (which claims to be low glycemic). Then on the Today Show I learned Agave raises trygliceride levels. So just this week, I've gone back to using 1 tsp. sugar. Is there anything that's safe to eat these days?

Kristen

February 16, 2011 10:24 p.m.

I drink one large cup (mug) in the morning with flavored cream before breakfast. I find that my glucose level is allready at the norm - high for 2hr AFTER the meal, and I didn't even eat yet!

Sherri

February 12, 2011 5:31 a.m.

It has always spiked me

FoggyPebble

January 31, 2011 12:20 p.m.

I don't have diabetes yet, but both of my parents do and grandparents on both sides. I have hypoglycemia (age 37, healthy weight) and if I drink too much coffee (more than 3/4 cup) I crash hard within an hour or so and I'm starving and shaky from low blood sugar. I only like coffee w/ sugar &amp; cream, so I'm currently just trying to cut coffee out. But it's good to hear that you found the same thing...that small doses might be o.k. Thanks.

Bob, there are laboratory blood tests that can be done to determine whether or not you are a type 1 or 2 diabetes. Ask your primary provider about it.

Nancy and Peggy

January 1, 2011 2:36 p.m.

35 years ago I was diagnosed with diabetes. The treating doctor prescribed a small amount of insulin (4 units NPH/day) rather than an oral medication. His stated logic was that I would eventually need insulin anyway. Over the years, my insulin need has increased to 66 units/day. About four years ago I was prescribed an insulin pump. I have been asked, many times, if I have type 1 or type 2 diabetes. Doctors I've seen can't seem to agree. What say you? This matters to the VA.

Bob

December 27, 2010 2:20 p.m.

I have hyperinsulinemia - my body over-produces insulin. When I have caffine, depending on the amount, I have almost an immeadiate hypoglycemic attack.

Hayley

November 16, 2010 12:26 p.m.

I am insulin dependent. If my fasting blood sugar is a little on the low side, all I have to do is have my morning coffee and I get right where I need to be.

Tammie

October 19, 2010 9:10 p.m.

I have diabetes, and I like coffee, I like the smell of coffee, and I have coffee in the morning or in the evening, and I find it will not effect my blood sugar level, I only use splenda, no problem, I'm taking metformin, and glimapride

Evelyn

October 12, 2010 5:12 p.m.

It is logical that caffeine would increase blood sugar. Caffeine increases cortisol levels, which causes that &quot;fight or flight response&quot; meaning the liver dumps a bunch of stored sugar into the blood. So the pancreas needs to release a lot of insulin to compensate for the excess sugar. In my opinion, this is undesirable and could cause insulin resistance.

Sidra

October 4, 2010 10:18 a.m.

I have noticed a rise in my am blood glucose after drinking about 12 oz coffee, sweetened with Splenda and with fat-free coffeemate added. Sugars rise from about 85 to about 180, about 15 minutes after drinking it, without any food consumption. I am currently on metformin and actos. Haven't noticed any crash later.

Mindy

October 1, 2010 9:11 p.m.

I have been a type 2 diabetic for 15 years and currenetly on Actos. When I drink coffee, I do so with Splenda &amp; non dairy creamer. I do notice a little hike in my sugar afterwards, but later my sugar will drop.

Ann

September 30, 2010 8:50 p.m.

I am a juvenile diabetic for 55 years on a insulin pump.
My morning BS after breakfast were always high.
(I eat 20 carbs + 1 cup of black coffee, with a BS of 200 an hour afterward) Thankfully, my pump trainer, told me many of his patients are &quot;caffeine sensitive&quot; &amp; to bolus insulin to compensate for the caffeine. How much insulin? Consult your doctor or dietitian for recommendations. This was excellent advise, for I'm no loner plagued with the morning BS highs. Hope this helps!

Jo-Anne

September 30, 2010 4:45 p.m.

Whenever I have too much caffeine (carb-free sources, or very low carb sources) I always have a horrible crash.

Dave

September 28, 2010 5:27 p.m.

I've made many changes to my diet/lifestyle since being diagnosed with Type 2 Diabetes. And I've been a good sport about it. I've gotten used to the dietary restrictions, injections,etc. Coworkers, friends, and family compliment me on how well I've adapted. I appreciate their kind thoughts, BUT...
the line is drawn here!!!
To paraphrase the NRA, they can pry my coffee cup out of my cold, dead fingers!
In the morning, I have a proper cup of coffee, with regular creamer and sugar. That's right, I said it...sugar, lol!
Of course, I note the sugar as I keep track of my daily intake. So, I sacrifice somewhere else in the day. Penence for my earlier saccharose sin. It's a price I'm happy to pay.
Hope y'all have a nice evening!

Bill

September 28, 2010 4:52 p.m.

I am Brazilian and we are practically nursed on strong coffee. I drink maybe 5 small cups of very strong espresso a day, and really have seen no negative effects on my fasting or post prandial sugar levels. I had pre-diabetes, managed to get it well under control (A1C of 5.8 when last measured) by dieting, shedding 20 lbs and eating healthier meals. Have not changed or my daily coffee consumption during this period.

Pedro

September 27, 2010 5:25 p.m.

what makes you think water does not affect blood glucose. It is the one thing besides drugs and exercise that can affect blood glucose

Paul

September 24, 2010 5:59 p.m.

There are a few studies out there that show caffeine, especially regular caffeinated coffee, is a violent effector of blood sugar, even with low carb meals. Caffeine itself causes a 15% increase in insulin resistance.

Tom

September 8, 2010 4:38 p.m.

I read something awhile back about a study on
coffee produced negative findings with the
production of insulin it was put into the new England
Journal of medicine they took it out stating
a lack of test results??????
Did the coffee industry have something to do with this??

Jim

September 5, 2010 9:24 a.m.

Coffee raises my blood sugar at least 7 points and I test right when I awake and then test right after a cup of coffee . Really is depressing.

Hadley

August 29, 2010 9:37 a.m.

I have type 2 diabetes and drink decaffeinated coffee. I still get the rich flavor of coffee without the jitters of caffeine. I use artificial sweetener and sugar free creamer and have not noticed any change in my blood sugar. I do not use medications to control my diabetes, just diet and exercise. It is not easy.

Dona

August 14, 2010 8:54 p.m.

The findings are vague and confusing. Is there a possitive or negative result by drinking coffee? Since you say coffee impairs insulin action, is that a good or bad thing?

Jim

July 19, 2010 8:05 a.m.

I am one of those that experiences high sugars when drinking coffee. It is not a daily habit for me but there are times when it is just what I want and I do enjoy a cup of two. If I don't give myself extra insulin to account for it, my blood sugar is always higher. Frustrating, but I am learning to deal with it and figure it in when counting carbohydrates. (I wear an insulin pump.)

Karen

July 11, 2010 7:30 p.m.

HOW MUCH SUGAR IS THERE IN A CAN OF POP ?????

Anonymous

July 6, 2010 10:18 a.m.

I have just recently started to drink Liptons Cold Brew ice tea with just lemon, no sweetener and I find that it raises my blood sugar severely. If I don't drink it or if I have a small cup of coffee with cream, I do not see a spike in my blood sugars.

I have been diagnosed with reactive hypoglycemia for years. The last two year it is out of control. My blood sugar last week went to 187. I learned from checking that is more than likely is now hyperglycemia. I have reactions to caffine if I drink to much. One reaction is about an hour after I drink it I dont feel well. The same feeling as a drop in blood sugar. I am trying to not drink it and switch to no caffeine or try it with protein.

Sharon

May 27, 2010 8:07 a.m.

I am really surprised at all the interest in coffee. I love my cup of java in the morning too. I recently read in an article, that caffeine reduces your horomonal symptoms of low blood glucose, thus masking the early warning signs of low blood glucose (sweaty, shaky, and weak).

Nancy and Peggy

May 27, 2010 2:48 a.m.

I am taking insulin 70/30 as needed.My problem is extreme stress. No matter how I micro manage my sugar I am either to high or to low..I am also losing weight because of the stress and cant seem to keep a tight control..I also swim at least 3 times per week for 1 hr and am losing weight

Linda

May 20, 2010 10:32 a.m.

I am a type 1 who just acquired a continuous glucose monitor. This enabled me to confirm that my BS rises almost immediately about 50mg after my morning cup of coffee (black coffee--no food). If I bolus one unit Humalog I keep level. If I have more than one cup my BS climbs higher and I'm prone to low BS crashes later in the morning-early afternoon. One cup though seems controllable.

Gail

May 19, 2010 4:51 p.m.

If I drink anything with caffeine in it, I have a serious hypoglycemic reaction about I hour later. My Dr. seems puzzled by this and has no explanation. My solution....no caffeine (and believe me, I love coffee).

jOHN

May 14, 2010 12:37 p.m.

I'm reading &quot;What You Need to Know to Keep Diabetes Away&quot; by Gretchen Becker. On pages 101-103 she explains how &quot;browning&quot; or &quot;roasting&quot; foods causes AGEs (Advanced Glycation End Products) which increases insulin resistance and advances some of the effects of aging. Coffee beans are roasted! Bummed me out! LOL

Billie

April 15, 2010 8:21 p.m.

I drink coffee everyday and have type 2 diabetes for almost 6 years. It has never affected my bllod sugar in any way.

barbara

April 6, 2010 12:38 a.m.

Personally, I cannot drink coffee in the morning with breakfast--it makes me nervous, and I have low blood sugars by mid-morning. I live in the South and prefer iced tea with breakfast year round. I enjoy coffee with cream (skim milk) with a carb snack in the afternoon. My favorite flavor of ice cream is coffee. Coffee with dinner or at night hypes me up too much to sleep. Beware of coffee drinks with alcohol--it races thru your bloodstream. (I have been living with Type 1 diabetes for twenty years, and have tried several different combinations of insulins. My family appreciates the efforts and work of the medical staff at the Mayo Clinic. Thanks.)

will kentucky

March 22, 2010 2:33 a.m.

I read an article and found some part of it relevant to the above post.So I am putting up some points from it below.
How caffeine raises blood sugar levels isn’t completely clear. It’s thought that caffeine may cause fluctuations in levels of hormones such as adrenalin or cortisol which could lead to elevations in blood sugar levels. There’s also the possibility that caffeine has a direct effect on the function of the insulin molecule which could cause glucose levels to rise.
A steaming hot cappuccino may be a temptation that’s difficult to pass up, but consuming caffeine in large quantities can make it more difficult to control blood sugar levels. The problem doesn’t stop with coffee. Caffeine is found in tea – including black, green, and white varieties, as well as chocolate. It’s also an ingredient in some over-the-counter and prescription medications. The news is not all bad. Because of the chlorogenic acid and trigonelline found in coffee, decaf may be safe for diabetics and may actually lower blood sugar levels.The best option? Make it decaf.

Shailja

March 21, 2010 1:56 a.m.

I tried to quit drinking diet cola during the day at work. When I don't drink it I get dizzy in the afternoon, even when I'm sitting down I feel dizzy. Eating anything makes the dizziness go away. I also notice that I am famished by dinner time, almost to the point of feeling out of control needing food.

Kathy

March 2, 2010 11:28 a.m.

As a new diabetic I am in the process of learning to control my blood sugar. Curously, and in response to this article I have found the caffine in coffee and tea to raise my blood dugar levels.

Mike

February 25, 2010 8:43 p.m.

my two cents for what is worth
ia m a type 2 and my experince thus far has been this
i drink coffee black nothing in it with the caffine i jump on average about 46 poins on the meter
i have since switched to decafe and nothing no rise no nothing tht i drink black as well it works for me and everyone is different so try it both ways and see what works , however if decaf works for you be preared for a few days of headaches from caffine with drawl .
good luck

rob

February 24, 2010 8:16 p.m.

i drink tea all day it dont effect my sugar type 2

Marie

February 14, 2010 9:28 a.m.

I have type two diabetes and I love the effects of caffeine, except for the fact that it raises my blood sugar substantially. I'm 60 years old and I've stayed away from caffein for long periods of time. In the past I'd stay away for 5 to 10 years at a time, but once I have a cup of coffee or tea I'd feel the rush of the caffeine for hours, and would be hooked for months before I could quit again. But since I got type 2 diabetes about 15 years ago, I also noticed that it raises my blood sugar substantially even after drinking an 8 oz. cup a day for only a couple of days. Then it takes me about 5 days to bring it back down to normal. I have this experience every time I start trying to put caffeine back into my life, probably about 25 different times. I hate having to give up coffee and tea because I like how it gets me moving. I wish it didn't raise my blood sugar so much , but what can I do. I have to keep trying to live without it.

Russell

February 9, 2010 7:46 a.m.

I used to drink strong organic cofee here in Ethiopia, almost daily after lunch, with adequate suger, for over ten years. I had no a family history of diabetus and encouraged by the good news about the role of cofee in many health problems. Therefore i was living sedentary life for years. But now i am almost diagnosed as a diabetic type II patient. My blood glucose was as high as 298 per dl.
I remember the cofee makes me anexious and worried for any trival issue. It has added so much stress in my life. I quited almost every thing after the diagnosis. Currently, I am on metformin, diet and exercise. I hope my BS has to go down. I am happy if you can give me a little advice as i have to start the life treatments and how should i reduce stress ful life

Markos

February 3, 2010 7:25 p.m.

Strangely, I have been to the Mayo Clinic many times and have repeatably told there is no such thing as hypoglycemia. Yet, they have many articles on it and i know that I have a lifetime history with hypoglycemia. I recently took a fasting blood test at the Mayo and my glucose levels were quite high. I indicated I drank coffee with my supper but none after fasting. I was subsequently criticized for drinking sweeten coffee all night long and my doctor threatened to stop seeing me. I hate sweetners and never use them but just a warning, never drink coffee the night before taking a fasting blood test, even though the brocher says you can drink it all night long, or the same thing could happen to you. I am now black listed for life in the eyes of my doctor.

edward

February 3, 2010 6:51 p.m.

Hi -- I just got diagnosed with hypoglycemia and I love coffee, so this post caught my eye. However, I drink decaffeinated coffee with Silk creamer and sugar. I was happy to see Jan's note, but wonder if any others have had an experience of glucose spikes with decaf. I feel like it is affecting me even though it is decaf, which is making me quite sad as coffee (even decaf) is my absolute favorite drink. Maybe it's the sugar?

There may be some effect, but I wouldn't know, since I use caffeine regularly. Like most things, consistency is the key. If it's part of your regular routine, you can adjust insulin and other inputs as needed.

Matthew

January 28, 2010 6:54 a.m.

caffeine causes an adrenal response which causes a rise in bs... a &quot;re use&quot; of stored glucose (glycogen)...glucose enters the blood and is ready for use in fueling fight/flight. If no fight/flight ensues, the bs can remain in the blood, be stored as glycogen, or be stored as intra abdominal fat (in the omenta) Diabetics should avoid caffeine, especially those using meds such as metformin. effects of caffeine remain for up to 18 hours for just one standard 8oz cup. Unless caffeine is being used to fuel physical activity, get your antioxidants elsewhere.

Suzi

January 25, 2010 10:07 p.m.

When my sugar is getting too high i always get headaches, they come on fast , but coffee seems to settle them and make me fell better. I dont see a big difference in my tests with coffee . But i dont think i am making a valid test. Also coffee is know to reduce headaches..I cant drink it everyday but when i can i sure do..

Jackie

January 10, 2010 3:25 a.m.

Four months ago, My blood sugar was at about 100 - 110 fasting in the morning. Four months ago, I started taking 600 mg Lopid for lowering my blood triglycerite. Now, my blood sugar in the morning is at 160 fasting. And I have started to fell numbness in my small fingers and sharp pain in my feet and left eye.. When I exercise, I start shaking, feel nauseated after 1/2 hour. Should I stop talking the Lopid? I have started to take apple vinegar, with ginger and lemon and garlic. It is helping me very much. Are these any natural supplements for treating diabetics?
When I drink coffee, I become hungry after 2-3 hours.

Monte

January 7, 2010 10:30 a.m.

Have always had a problem with caff. Took me many years to recognize it. I am hypoglacemic. Caff. will cause low blood sugar in me and stomach upset for as day after. Have to differ as to water will not cause low blood sugar. Typical low blood sugar episode for me is Summer working out hard sweating drinking water to stay hydrated I reach a point that I believe the water has dilluted my blood sugar. If I drink more water I will throw up become disoriented etc. If I drink an energy drink with some sugar in it I will be ok. Just my experience. Just recently had sugar in urine in trip to doctors office have not been able to repeat sugar in urine. c1c was 150 but I drink 4 16oz soft drinks a day.

eddie

January 5, 2010 12:38 a.m.

Cafeeine, regardless of its source, exacerbates (speeds up) the use of sugar in your system. Therefore, you will first note a brief rise in your energy level fromthe increase of sugar speeding through your system, then the &quot;crash&quot; that is so noteable for those of us suffering from hypoglycemia, when the rush of sugar is gone. Best to avoidthe caffeine or plan for the varied blood sugar curve.

Carin

January 2, 2010 7:57 a.m.

I am type I and I have had some pretty severe low b/s after drinking large amounts of coffee- I don't buy that theory that coffee makes your b/s rise. However, I know that many things affect b/s, and I'm not ready to blame my low b/s entirely on the coffee

sara

December 29, 2009 6:22 a.m.

I am not diabetic, however if I drink too much coffee (a must if you are a flight attendant, the hours sometimes suck) my blood sugar bottoms out and I get disoriented, sweaty, shaky, etc. If I find something with sugar in it the symptoms go away within 10-15 minutes. I am on my way to the doctor today for a glucose tolerance test just to be sure

Karen

December 28, 2009 3:48 p.m.

I drink the same &quot;dose&quot; of coffee and (nonfat) milk and Splenda every morning (weekends too), and at about the same time every day. I don't find any BS problems. Tho it does make my bladder more active in the mornings too, I've noticed. I honestly think the stimulant of the caffeine outweighs the effects of the lactose in the milk. I'v noticed that adding even a few drops of flavor syrup (hazelnut, not no-sugar kind) will trigger a much higher BS rise. So, I think my body is &quot;used to&quot; my regular morning coffee routine.
BTW, I agree with &quot;Its not the caffeine itself, but the act of ingesting anything you could probably get that result drinking water.&quot; I've seen studies of people who's BS went up merely from smelling the scent of bacon cooking! So, could be either.

cat

December 27, 2009 4:33 p.m.

What about the caffeine in diet pop? Is this different than what's in coffee? Doesn't seem to affect me sugar-wise.

Sue

December 21, 2009 5:41 p.m.

I have type 2 diabetes and have really cut down on caffeine. Most of the time it makes me ravenously hungry and I eat anything I can get my hands on. However, I can at times have it, especially after a meal it does not affect me as much.

Linda

December 20, 2009 7:06 a.m.

I drink beer regularly but it doesn't seem to affect my blood sugar levels very much. I am thankful. Is this normal?

Greg

December 19, 2009 4:20 p.m.

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Patty

December 6, 2009 5:54 a.m.

Even drinking my coffee with splenda and half-n-half, if I take my &quot;fasting&quot; level after my first cup I stay within my range- I only see a less than 10 point rise.

Bobbi

December 2, 2009 9:57 p.m.

I think its touch and go at first, you need to check your blood sugar often and especially with new foods, i think different foods affect different people different, so practice, I saw one person using sugar in their coffee, you'd think &quot;sugar&quot; hey, thats the cause of my problem...so moderate amount of food and see how it affects you, one day may be different from the next, test test test and test again, this may not be what diabetic educators say, but it works for me, work it out on your terms.

Like Mark below....I also suffer from hypoglycemia. Coffee seems to trigger episodes of low blood sugar.
Since I had a serious low blood sugar attack drinking coffee, after taking a fasting blood sugar test (in which I came close to passing out), I've avoided caffeine all together.
It was a scary experience.

Brian

December 1, 2009 10:55 p.m.

When I was in a diabetic clinic, was told I could have black coffee the morning of a fasting blood draw. After repeated spikes, had to quit that and only drink water. After the draw at the clinic, I could have a cup and every time I'd have a spike. Who knows?

Mark, I have the same reaction, probably pre diabetic now but coffe really can effe3ct my BS. May drop it dwn.. i have to eat almonds or protein with it.

Terry

November 25, 2009 8:01 a.m.

I have type 2 diabetes, I also suffer from Essential Tremors.Would coffee be advisable for me?

Nelson

November 25, 2009 4:14 a.m.

I think that just the act of eating or drinking anything makes your blood suger rise. The fact that the first thing most people have in the morning is a cup of coffee making this type of study unreliable, Its not the caffeine itself, but the act of ingesting anything you could probably get that result drinking water.

millie

November 24, 2009 11:34 p.m.

I have two large cups (probably 16 oz each) each morning, with one spoon of sugar each and some creamer! But I am NOT having blood sugar spikes. I really thought I would when I took up the coffee habit again after many years, but about 135 is the highest I have gotten. I do take Lantus insulin, and I have Novolog for before meals if needed. I find lately that I am not needing the Novolog often at all. I am mystified. If, of course, I eat something I should not (especially a lot of it), then I really need the Novolog. But that is not often any more. Have been working hard on that. I find that the coffee helps with the frequent migraines I get, and I don't get the glucose spike, so I'm hoping all is good!! I cannot use artificial sweeteners (not even the so-called &quot;natural&quot; ones), so switching from the sugar is not an option. I do, however, use honey in my oatmeal and no glucose spike there either! Yay!

barbara

November 24, 2009 7:38 p.m.

I have had type 2 for 20 years and I haven't noticed spikes from coffee. I did solve the too much coffee habit however. Instead of drinking a whole pot ful during the day, stale and all, I now have a Keureg brewer so can have one fresh cup of coffee anytime I wish. Good too.

Betty

November 24, 2009 5:50 p.m.

Ihave been drinking coffee for 70 years and I'm type 1 diabetic for 55 years . Ihave never had a spike in glucose or a drop because of coffee.
Wesco

wesco

November 24, 2009 8:42 a.m.

I must admit this surprises me. I was told by a Dr. many years ago that caffeine reduced my blood sugar (i am hypoglycemic). And at least i thought my experience bore this out. I rarely drink coffee w/o having a meal first but if I do, I seem more likely to have a blood sugar crash. And I thought that's why lattes were less likely to cause the jitters than black coffee - because of the carbs, protein and fat along w/ the caffeine?

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